Now this is odd...
I've tested another cable - a very short one used with a Gen3 nvme enclosure that I'm sure it's working - and I got Gen2 20 Gbps. I also have tested this on Windows 11 and I still just got a Gen2 connection.
I was almost sure it was caused by a bad USB4 implementation by the PC manufacturer, then I tried to connect a Thunderbolt 3 disk enclosure via daisy chain to the Caldigit dock and I got the full Gen3 40 Gbps connection! See the attached picture.
I'll try to connect the dock to a laptop via Thunderbolt 3 as a last test and I'll report back.
On Tue, May 21, 2024 at 1:26 PM Mika Westerberg mika.westerberg@linux.intel.com wrote:
On Tue, May 21, 2024 at 11:12:10AM +0200, Gia wrote:
Here you have the output from the dock upstream port:
sudo tbdump -r 2 -a 1 -vv -N2 LANE_ADP_CS_0
0x0036 0x003c013e 0b00000000 00111100 00000001 00111110 .... LANE_ADP_CS_0 [00:07] 0x3e Next Capability Pointer [08:15] 0x1 Capability ID [16:19] 0xc Supported Link Speeds [20:21] 0x3 Supported Link Widths (SLW) [22:23] 0x0 Gen 4 Asymmetric Support (G4AS) [26:26] 0x0 CL0s Support [27:27] 0x0 CL1 Support [28:28] 0x0 CL2 Support 0x0037 0x0828003c 0b00001000 00101000 00000000 00111100 .... LANE_ADP_CS_1 [00:03] 0xc Target Link Speed → Router shall attempt Gen 3 speed [04:05] 0x3 Target Link Width → Establish a Symmetric Link [06:07] 0x0 Target Asymmetric Link → Establish Symmetric Link [10:10] 0x0 CL0s Enable [11:11] 0x0 CL1 Enable [12:12] 0x0 CL2 Enable [14:14] 0x0 Lane Disable (LD) [15:15] 0x0 Lane Bonding (LB) [16:19] 0x8 Current Link Speed → Gen 2 [20:25] 0x2 Negotiated Link Width → Symmetric Link (x2) [26:29] 0x2 Adapter State → CL0 [30:30] 0x0 PM Secondary (PMS)
Hmm, okay both sides announce support of Gen3 yet the link is Gen2 which makes me still suspect the cable, or the connection in general. I suggest, if you have, try with another Thunderbolt cable.
